5.0 into 69 stang

Hey,I'm putting a 5.0 out of a 1992 thuderbird into a 1969 mustang mach1.I have the complete thuderbird. My question is has any of you ever done this kind of a swap and how hard would it be to use the wiring harness and has any one ever used the suspension ,rack & pinion from one of these cars . Any help would be greatly appreciated